ADS5240 Datasheet PDF - Burr-Brown Corporation
| Part Number | ADS5240 | |
| Description | 40MSPS ADC | |
| Manufacturers | Burr-Brown Corporation | |
| Logo |  |
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BurrĆBrown Products
from Texas Instruments
¨
ADS5240
SBAS326C – JUNE 2004 – REVISED DECEMBER 2004
4-Channel, 12-Bit, 40MSPS ADC
with Serial LVDS Interface
FEATURES
• Maximum Sample Rate: 40MSPS
• 12-Bit Resolution
• No Missing Codes
• Power Dissipation: 607mW
• CMOS Technology
• Simultaneous Sample-and-Hold
• 70.5dBFS SNR at 10MHz IF
• Internal and External References
• 3.3V Digital/Analog Supply
• Serialized LVDS Outputs
• Integrated Frame and Bit Patterns
• MSB and LSB First Modes
• Option to Double LVDS Clock Output Currents
• Pin- and Format-Compatible Family
• HTQFP-64 PowerPAD™ Package
APPLICATIONS
• Portable Ultrasound Systems
• Tape Drives
• Test Equipment
• Optical Networking
DESCRIPTION
The ADS5240 is a high-performance, 4-channel,
40MSPS analog-to-digital converter (ADC). Internal
references are provided, simplifying system design
requirements. Low power consumption allows for the
highest of system integration densities. Serial LVDS
(low-voltage differential signaling) outputs reduce the
number of interface lines and package size.
RELATED PRODUCTS
MODEL
RESOLUTION
(BITS)
ADS5242(1)
12
(1) Available Q1 2005.
SAMPLE RATE
(MSPS)
CHANNELS
65 4
An integrated phase lock loop multiplies the incoming
ADC sampling clock by a factor of 12. This 12x clock
is used in the process of serializing the data output
from each channel. The 12x clock is also used to
generate a 1x and a 6x clock, both of which are
transmitted as LVDS clock outputs. The 6x clock is
denoted by the differential pair LCLKP and LCLKN,
while the 1x clock is denoted by ADCLKP and
ADCLKN. The word output of each ADC channel can
be transmitted either as MSB or LSB first. The bit
coinciding with the rising edge of the 1x clock output
is the first bit of the word. Data is to be latched by the
receiver on both the rising and falling edges of the 6x
clock.
The ADS5240 provides internal references, or can
optionally be driven with external references. Best
performance can be achieved through the internal
reference mode.
The device is available in an HTQFP-64 PowerPAD
package and is specified over a -40°C to +85°C
operating range.
6X ADCLK
ADCLK
PLL
1X ADCLK
IN 1 P
IN1N
S/H
IN 2 P
IN2N
S/H
IN 3 P
IN3N
S/H
IN 4 P
IN4N
S/H
12− Bit
ADC
12− Bit
ADC
12− Bit
ADC
12− Bit
ADC
Serializer
Serializer
Serializer
Serializer
Reference
R e g is te rs
C o n tr o l
INT /E X T
LCLKP
LCLKN
ADC LKP
ADC LKN
OUT 1P
OUT 1N
OUT 2P
OUT 2N
OUT 3P
OUT 3N
OUT 4P
OUT 4N
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated
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ADS5240
www.ti.com
SBAS326C – JUNE 2004 – REVISED DECEMBER 2004
AC CHARACTERISTICS
TMIN = -40°C and TMAX = +85°C. Typical values are at TA = 25°C, clock frequency = 40MSPS, 50% clock duty cycle,
AVDD = 3.3V, LVDD = 3.3V differential, transformer coupled inputs, -1dBFS, ISET = 56.2kΩ, internal voltage reference, and
LVDS buffer current at 3.5mA per channel, unless otherwise noted.
PARAMETER
DYNAMIC CHARACTERISTICS
SFDR Spurious-Free Dynamic Range
HD2 2nd-Order Harmonic Distortion
HD3 3rd-Order Harmonic Distortion
SNR Signal-to-Noise Ratio
SINAD Signal-to-Noise and Distortion
IMD Two-Tone Intermodulation Distortion
ENOB Effective Number of Bits
Crosstalk
CONDITIONS
ADS5240
MIN TYP MAX UNITS
fIN = 1MHz
87
fIN = 5MHz
78 85
fIN = 10MHz
85
fIN = 1MHz
95
fIN = 5MHz
85 95
fIN = 10MHz
90
fIN = 1MHz
87
fIN = 5MHz
78 85
fIN = 10MHz
85
fIN = 1MHz
70.5
fIN = 5MHz
68 70.5
fIN = 10MHz
70
fIN = 1MHz
70
fIN = 5MHz
67 70
fIN = 10MHz
69.5
f1 = 9.5MHz at -7dBFS
f2 = 10.2MHz at -7dBFS
-88
fIN = 5MHz
11.3
Signal Applied to 3 Channels; Measurement Taken
on the Channel with No Input Signal
-90
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBc
Bits
dBc
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ADS5240 electronic component. |
| Information | Total 24 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ADS5240.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| ADS5240 | The function is 40MSPS ADC. Burr-Brown Corporation | |
| ADS5240 | The function is 4-Channel 12-Bit 40MSPS ADC with Serial LVDS Interface (Rev. E). Texas Instruments |  |
| ADS5242 | The function is 65MSPS Analog-to-Digital Converter. Burr-Brown Corporation | |
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